Poultry Feeding and Nutrition
As we know, poultry production systems are continually evolving. One of the primary causes that... View more
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Poultry
What amino acids are most commonly lacking in poultry rations?
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16 Replies
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Lysine, Methionine, Threonine
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Well discussion
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Cysteine and methionine are considered the first limiting amino acids in practical poultry diets due to their limited presence in protein sources of plant origin.
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Few specific signs are associated with a deficiency of the various individual amino acids, except for a peculiar, cup-shaped appearance of the feathers in chickens with arginine deficiency and loss of pigment in some of the wing feathers in bronze turkeys with lysine deficiency.
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Good
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Good
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Chickens also need adequate amounts of glycine and proline in their diets, which are not synthesized well by chickens. Animal proteins, such as bone meal, ruminant meat, and hydrolyzed feather meal, are good sources of these amino acids.
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A limiting amino acid in poultry diets because it’s not commonly found in plant-based protein sources.
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The amino acids most commonly lacking in poultry rations are methionine, cysteine, and lysine
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Often one of the limiting amino acids in broiler diets. Lysine is used as the reference amino acid to which all other essential amino acids are rationed.
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An essential amino acid that’s often the first limiting amino acid in poultry diets. Methionine is important because it’s a precursor to cystine.
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